Patents by Inventor Dennis I. Stewart

Dennis I. Stewart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8919400
    Abstract: A tool connected to a traction chain or another traction device serves as an extension/guide for leading and pulling the chain onto a tire. An elongated belt of the tool is placed around the tire tread and attached to the leading end of the chain. As the vehicle is moved a short distance, friction between the tire and belt (and capture of the belt between the tire and the ground/road) draw the belt and hence the tire traction chain around the circumference of the tire on which the belt is placed and/or onto adjacent tire(s). A stretcher/expander at another location(s) on the chain fully-expands the chain during installation. The preferred tool is easier to lift and manipulate than the chain and need not be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 30, 2014
    Inventor: Dennis I. Stewart
  • Publication number: 20130105054
    Abstract: A tool connected to a traction chain or another traction device serves as an extension/guide for leading and pulling the chain onto a tire. An elongated belt of the tool is placed around the tire tread and attached to the leading end of the chain. As the vehicle is moved a short distance, friction between the tire and belt (and capture of the belt between the tire and the ground/road) draw the belt and hence the tire traction chain around the circumference of the tire on which the belt is placed and/or onto adjacent tire(s). A stretcher/expander at another location(s) on the chain fully-expands the chain during installation. The preferred tool is easier to lift and manipulate than the chain and need not be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Application
    Filed: April 10, 2012
    Publication date: May 2, 2013
    Inventor: DENNIS I. STEWART
  • Patent number: 8151844
    Abstract: A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: April 10, 2012
    Inventor: Dennis I. Stewart
  • Publication number: 20090294004
    Abstract: A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 3, 2009
    Inventor: DENNIS I. STEWART
  • Patent number: 7543618
    Abstract: A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: June 9, 2009
    Inventor: Dennis I. Stewart
  • Publication number: 20080196809
    Abstract: A tire chain installation tool comprises an elongated member that is connectable to a traction chain or other traction device and that acts as an extension and guide for leading or pulling the traction chain onto a tire. The tool receives one end of the tire traction chain, and an elongated belt of the tool is placed around the tread surface of a vehicle tire. Upon rotation of the tire due to movement of the vehicle, friction between the tire and belt (and capture of the belt between the tire and the ground/road) cause the belt and hence the tire traction chain, to be drawn around the circumference of the vehicle tire. Thus, the traction chain is placed in good position to be fastened without the struggle and discomfort frequently associated with installing chains on a vehicle. The preferred belt is easier to lift and manipulate than the traction chain and does not need to be positioned or manipulated in the space behind the tire (away from the user) or in the space between dual tires.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 21, 2008
    Inventor: Dennis I. Stewart